/*
 * elf_type.h
 *
 *  Created on: 2010-3-9
 *      Author: Jiang.Taijin
 */

#ifndef __ELF_TYPE_H
#define __ELF_TYPE_H

#include "../SylixOS/config/cpu/cpu_cfg.h"

#if (defined LW_CFG_CPU_ARCH_ARM)
#include "arch/arm/elf/armElf.h"

#elif (defined LW_CFG_CPU_ARCH_X86)
#include "arch/x86/elf/x86Elf.h"

#elif (defined LW_CFG_CPU_ARCH_MIPS)
#include "arch/mips/elf/mipsElf.h"

#elif (defined LW_CFG_CPU_ARCH_PPC)
#include "arch/ppc/elf/ppcElf.h"
#endif  /*  LW_CFG_CPU_ARCH_ARM  */

// Attention! Platform depended definitions.
/* 32-bit ELF base types. */
typedef addr_t   Elf32_Addr;
typedef UINT16   Elf32_Half;
typedef UINT32   Elf32_Off;
typedef SINT32   Elf32_Sword;
typedef UINT32   Elf32_Word;

/* 64-bit ELF base types. */
typedef addr_t   Elf64_Addr;
typedef UINT16   Elf64_Half;
typedef SINT16   Elf64_SHalf;
typedef UINT64   Elf64_Off;
typedef SINT32   Elf64_Sword;
typedef UINT32   Elf64_Word;
typedef UINT64   Elf64_Xword;
typedef SINT64   Elf64_Sxword;

/* These constants are for the segment types stored in the image headers */
#define PT_NULL         0
#define PT_LOAD         1
#define PT_DYNAMIC      2
#define PT_INTERP       3
#define PT_NOTE         4
#define PT_SHLIB        5
#define PT_PHDR         6
#define PT_TLS          7               /* Thread local storage segment */
#define PT_LOOS         0x60000000      /* OS-specific */
#define PT_HIOS         0x6fffffff      /* OS-specific */
#define PT_LOPROC       0x70000000
#define PT_HIPROC       0x7fffffff
#define PT_GNU_EH_FRAME 0x6474e550

#define PT_GNU_STACK    (PT_LOOS + 0x474e551)

/* These constants define the different elf file types */
#define ET_NONE         0
#define ET_REL          1
#define ET_EXEC         2
#define ET_DYN          3
#define ET_CORE         4
#define ET_LOPROC       0xff00
#define ET_HIPROC       0xffff

/* This is the info that is needed to parse the dynamic section of the file */
#define DT_NULL         0
#define DT_NEEDED       1
#define DT_PLTRELSZ     2
#define DT_PLTGOT       3
#define DT_HASH         4
#define DT_STRTAB       5
#define DT_SYMTAB       6
#define DT_RELA         7
#define DT_RELASZ       8
#define DT_RELAENT      9
#define DT_STRSZ        10
#define DT_SYMENT       11
#define DT_INIT         12
#define DT_FINI         13
#define DT_SONAME       14
#define DT_RPATH        15
#define DT_SYMBOLIC     16
#define DT_REL          17
#define DT_RELSZ        18
#define DT_RELENT       19
#define DT_PLTREL       20
#define DT_DEBUG        21
#define DT_TEXTREL      22
#define DT_JMPREL       23
#define DT_BIND_NOW     24
#define DT_INIT_ARRAY   25
#define DT_FINI_ARRAY   26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
#define DT_RUNPATH      29
#define DT_FLAGS        30
#define DT_ENCODING     32
#define DT_PREINIT_ARRAY   32
#define DT_PREINIT_ARRAYSZ 33
#define OLD_DT_LOOS     0x60000000
#define DT_LOOS         0x6000000d
#define DT_HIOS         0x6ffff000
#define DT_VALRNGLO     0x6ffffd00
#define DT_VALRNGHI     0x6ffffdff
#define DT_ADDRRNGLO    0x6ffffe00
#define DT_ADDRRNGHI    0x6ffffeff
#define DT_VERSYM       0x6ffffff0
#define DT_RELACOUNT    0x6ffffff9
#define DT_RELCOUNT     0x6ffffffa
#define DT_FLAGS_1      0x6ffffffb
#define DT_VERDEF       0x6ffffffc
#define DT_VERDEFNUM    0x6ffffffd
#define DT_VERNEED      0x6ffffffe
#define DT_VERNEEDNUM   0x6fffffff
#define OLD_DT_HIOS     0x6fffffff
#define DT_LOPROC       0x70000000
#define DT_HIPROC       0x7fffffff

/* e_machine */
#define EM_NONE		0		/* e_machine */
#define EM_M32		1		/* AT&T WE 32100 */
#define EM_SPARC	2		/* Sun SPARC */
#define EM_386		3		/* Intel 80386 */
#define EM_68K		4		/* Motorola 68000 */
#define EM_88K		5		/* Motorola 88000 */
#define EM_486		6		/* Intel 80486 */
#define EM_860		7		/* Intel i860 */
#define EM_MIPS		8		/* MIPS family  */
#define EM_PPC_OLD      17  /* PowerPC family - EABI draft 1.0 */
#define EM_PPC          20  /* PowerPC family */
#define EM_ARM		    40  /* ARM/Thumb family */
#define EM_SH           42  /* Hitachi SH family */

/* This info is needed when parsing the symbol table */
#define STB_LOCAL       0
#define STB_GLOBAL      1
#define STB_WEAK        2

#define STT_NOTYPE      0
#define STT_OBJECT      1
#define STT_FUNC        2
#define STT_SECTION     3
#define STT_FILE        4
#define STT_COMMON      5
#define STT_TLS         6

#define ELF_ST_BIND(x)      ((x) >> 4)
#define ELF_ST_TYPE(x)      (((unsigned int) x) & 0xf)
#define ELF32_ST_BIND(x)    ELF_ST_BIND(x)
#define ELF32_ST_TYPE(x)    ELF_ST_TYPE(x)
#define ELF64_ST_BIND(x)    ELF_ST_BIND(x)
#define ELF64_ST_TYPE(x)    ELF_ST_TYPE(x)

typedef struct dynamic{
    Elf32_Sword d_tag;
    union{
        Elf32_Word      d_val;
        Elf32_Addr      d_ptr;
    } d_un;
} Elf32_Dyn;

typedef struct {
    Elf64_Sxword    d_tag;       /* entry tag value */
    union {
        Elf64_Xword     d_val;
        Elf64_Addr      d_ptr;
    } d_un;
} Elf64_Dyn;

/* The following are used with relocations */
#define ELF32_R_SYM(x)          ((x) >> 8)
#define ELF32_R_TYPE(x)         ((x) & 0xff)

#define ELF64_R_SYM(i)          ((i) >> 32)
#define ELF64_R_TYPE(i)         ((i) & 0xffffffff)

/* sym st_other Symbol Visibility (add by Han.Hui)*/
#define STV_DEFAULT             0
#define STV_INTERNAL            1
#define STV_HIDDEN              2
#define STV_PROTECTED           3

typedef struct elf32_rel {
    Elf32_Addr      r_offset;
    Elf32_Word      r_info;
} Elf32_Rel;

typedef struct elf64_rel {
    Elf64_Addr      r_offset;  /* Location at which to apply the action */
    Elf64_Xword     r_info;   /* index and type of relocation */
} Elf64_Rel;

typedef struct elf32_rela{
    Elf32_Addr      r_offset;
    Elf32_Word      r_info;
    Elf32_Sword     r_addend;
} Elf32_Rela;

typedef struct elf64_rela {
    Elf64_Addr      r_offset;  /* Location at which to apply the action */
    Elf64_Xword     r_info;   /* index and type of relocation */
    Elf64_Sxword    r_addend;    /* Constant addend used to compute value */
} Elf64_Rela;

typedef struct elf32_sym{
    Elf32_Word      st_name;
    Elf32_Addr      st_value;
    Elf32_Word      st_size;
    unsigned char   st_info;
    unsigned char   st_other;
    Elf32_Half      st_shndx;
} Elf32_Sym;

typedef struct elf64_sym {
    Elf64_Word      st_name;       /* Symbol name, index in string tbl */
    unsigned char   st_info;    /* Type and binding attributes */
    unsigned char   st_other;   /* No defined meaning, 0 */
    Elf64_Half      st_shndx;      /* Associated section index */
    Elf64_Addr      st_value;      /* Value of the symbol */
    Elf64_Xword     st_size;      /* Associated symbol size */
} Elf64_Sym;


#define EI_NIDENT   16

typedef struct elf32_hdr{
    unsigned char e_ident[EI_NIDENT];
    Elf32_Half      e_type;
    Elf32_Half      e_machine;
    Elf32_Word      e_version;
    Elf32_Addr      e_entry;  /* Entry point */
    Elf32_Off       e_phoff;
    Elf32_Off       e_shoff;
    Elf32_Word      e_flags;
    Elf32_Half      e_ehsize;
    Elf32_Half      e_phentsize;
    Elf32_Half      e_phnum;
    Elf32_Half      e_shentsize;
    Elf32_Half      e_shnum;
    Elf32_Half      e_shstrndx;
} Elf32_Ehdr;

typedef struct elf64_hdr {
    unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
    Elf64_Half      e_type;
    Elf64_Half      e_machine;
    Elf64_Word      e_version;
    Elf64_Addr      e_entry;       /* Entry point virtual address */
    Elf64_Off       e_phoff;        /* Program header table file offset */
    Elf64_Off       e_shoff;        /* Section header table file offset */
    Elf64_Word      e_flags;
    Elf64_Half      e_ehsize;
    Elf64_Half      e_phentsize;
    Elf64_Half      e_phnum;
    Elf64_Half      e_shentsize;
    Elf64_Half      e_shnum;
    Elf64_Half      e_shstrndx;
} Elf64_Ehdr;

/* These constants define the permissions on sections in the program
   header, p_flags. */
#define PF_R        0x4
#define PF_W        0x2
#define PF_X        0x1

typedef struct elf32_phdr{
    Elf32_Word      p_type;
    Elf32_Off       p_offset;
    Elf32_Addr      p_vaddr;
    Elf32_Addr      p_paddr;
    Elf32_Word      p_filesz;
    Elf32_Word      p_memsz;
    Elf32_Word      p_flags;
    Elf32_Word      p_align;
} Elf32_Phdr;

typedef struct elf64_phdr {
    Elf64_Word      p_type;
    Elf64_Word      p_flags;
    Elf64_Off       p_offset;       /* Segment file offset */
    Elf64_Addr      p_vaddr;       /* Segment virtual address */
    Elf64_Addr      p_paddr;       /* Segment physical address */
    Elf64_Xword     p_filesz;     /* Segment size in file */
    Elf64_Xword     p_memsz;      /* Segment size in memory */
    Elf64_Xword     p_align;      /* Segment alignment, file & memory */
} Elf64_Phdr;

/* sh_type */
#define SHT_NULL        0
#define SHT_PROGBITS    1
#define SHT_SYMTAB      2
#define SHT_STRTAB      3
#define SHT_RELA        4
#define SHT_HASH        5
#define SHT_DYNAMIC     6
#define SHT_NOTE        7
#define SHT_NOBITS      8
#define SHT_REL         9
#define SHT_SHLIB       10
#define SHT_DYNSYM      11
#define SHT_NUM         12
#define SHT_LOPROC      0x70000000
#define SHT_HIPROC      0x7fffffff
#define SHT_LOUSER      0x80000000
#define SHT_HIUSER      0xffffffff

/* sh_flags */
#define SHF_WRITE       0x1
#define SHF_ALLOC       0x2
#define SHF_EXECINSTR   0x4
#define SHF_MASKPROC    0xf0000000

/* special section indexes */
#define SHN_UNDEF       0
#define SHN_LORESERVE   0xff00
#define SHN_LOPROC      0xff00
#define SHN_HIPROC      0xff1f
#define SHN_ABS         0xfff1
#define SHN_COMMON      0xfff2
#define SHN_HIRESERVE   0xffff

typedef struct {
    Elf32_Word      sh_name;
    Elf32_Word      sh_type;
    Elf32_Word      sh_flags;
    Elf32_Addr      sh_addr;
    Elf32_Off       sh_offset;
    Elf32_Word      sh_size;
    Elf32_Word      sh_link;
    Elf32_Word      sh_info;
    Elf32_Word      sh_addralign;
    Elf32_Word      sh_entsize;
} Elf32_Shdr;

typedef struct elf64_shdr {
    Elf64_Word      sh_name;       /* Section name, index in string tbl */
    Elf64_Word      sh_type;       /* Type of section */
    Elf64_Xword     sh_flags;     /* Miscellaneous section attributes */
    Elf64_Addr      sh_addr;       /* Section virtual addr at execution */
    Elf64_Off       sh_offset;      /* Section file offset */
    Elf64_Xword     sh_size;      /* Size of section in bytes */
    Elf64_Word      sh_link;       /* Index of another section */
    Elf64_Word      sh_info;       /* Additional section information */
    Elf64_Xword     sh_addralign; /* Section alignment */
    Elf64_Xword     sh_entsize;   /* Entry size if section holds table */
} Elf64_Shdr;

#define EI_MAG0         0       /* e_ident[] indexes */
#define EI_MAG1         1
#define EI_MAG2         2
#define EI_MAG3         3
#define EI_CLASS        4
#define EI_DATA         5
#define EI_VERSION      6
#define EI_OSABI        7
#define EI_PAD          8

#define ELFMAG0         0x7f        /* EI_MAG */
#define ELFMAG1         'E'
#define ELFMAG2         'L'
#define ELFMAG3         'F'
#define ELFMAG          "\177ELF"
#define SELFMAG         4

#define ELFCLASSNONE    0       /* EI_CLASS */
#define ELFCLASS32      1
#define ELFCLASS64      2
#define ELFCLASSNUM     3

#define ELFDATANONE     0       /* e_ident[EI_DATA] */
#define ELFDATA2LSB     1
#define ELFDATA2MSB     2

#define EV_NONE         0       /* e_version, EI_VERSION */
#define EV_CURRENT      1
#define EV_NUM          2

#define ELFOSABI_NONE   0
#define ELFOSABI_LINUX  3

#ifndef ELF_OSABI
#define ELF_OSABI       ELFOSABI_NONE
#endif

/* Notes used in ET_CORE */
#define NT_PRSTATUS     1
#define NT_PRFPREG      2
#define NT_PRPSINFO     3
#define NT_TASKSTRUCT   4
#define NT_AUXV         6
#define NT_PRXFPREG     0x46e62b7f  /* copied from gdb5.1/include/elf/common.h */
#define NT_PPC_VMX      0x100       /* PowerPC Altivec/VMX registers */
#define NT_PPC_SPE      0x101       /* PowerPC SPE/EVR registers */
#define NT_PPC_VSX      0x102       /* PowerPC VSX registers */
#define NT_386_TLS      0x200       /* i386 TLS slots (struct user_desc) */


/* Note header in a PT_NOTE section */
typedef struct elf32_note {
    Elf32_Word      n_namesz;   /* Name size */
    Elf32_Word      n_descsz;   /* Content size */
    Elf32_Word      n_type;     /* Content type */
} Elf32_Nhdr;

/* Note header in a PT_NOTE section */
typedef struct elf64_note {
    Elf64_Word      n_namesz;  /* Name size */
    Elf64_Word      n_descsz;  /* Content size */
    Elf64_Word      n_type;    /* Content type */
} Elf64_Nhdr;

typedef struct elf32_hash {
    Elf32_Word      nbucket;
    Elf32_Word      nchain;
}Elf32_Hash;

typedef struct elf64_hash {
    Elf64_Word      nbucket;
    Elf64_Word      nchain;
}Elf64_Hash;

typedef struct elf32_auxv_t {
    Elf32_Word	    a_type;
    union {
        Elf32_Word  a_val;
    } a_un;
} Elf32_auxv_t;

typedef struct elf64_auxv_t {
    Elf64_Word	    a_type;
    union {
        Elf64_Word  a_val;
    } a_un;
} Elf64_auxv_t;

#if ELF_CLASS == ELFCLASS32

#define ELF_R_SYM    ELF32_R_SYM
#define ELF_R_TYPE   ELF32_R_TYPE

typedef Elf32_Half      Elf_Half;
typedef Elf32_Off       Elf_Off;
typedef Elf32_Sword     Elf_Sword;
typedef Elf32_Word      Elf_Word;
typedef Elf32_Addr      Elf_Addr;
typedef Elf_Addr        Elf_Val;

typedef Elf32_Dyn       Elf_Dyn;
typedef Elf32_Rel       Elf_Rel;
typedef Elf32_Rela      Elf_Rela;
typedef Elf32_Sym       Elf_Sym;
typedef Elf32_Ehdr      Elf_Ehdr;
typedef Elf32_Phdr      Elf_Phdr;
typedef Elf32_Shdr      Elf_Shdr;
typedef Elf32_Hash      Elf_Hash;

typedef Elf32_auxv_t    Elf_auxv_t;

#else /* ELF_CLASS == ELFCLASS32 */

#define ELF_R_SYM    ELF64_R_SYM
#define ELF_R_TYPE   ELF64_R_TYPE

typedef Elf64_Half      Elf_Half;
typedef Elf64_Off       Elf_Off;
typedef Elf64_Sword     Elf_Sword;
typedef Elf64_Word      Elf_Word;
typedef Elf64_Addr      Elf_Addr;
typedef Elf_Addr        Elf_Val;

typedef Elf64_Dyn       Elf_Dyn;
typedef Elf64_Rel       Elf_Rel;
typedef Elf64_Rela      Elf_Rela;
typedef Elf64_Sym       Elf_Sym;
typedef Elf64_Ehdr      Elf_Ehdr;
typedef Elf64_Phdr      Elf_Phdr;
typedef Elf64_Shdr      Elf_Shdr;
typedef Elf64_Hash      Elf_Hash;

typedef Elf64_auxv_t    Elf_auxv_t;

#endif /* ELF_CLASS == ELFCLASS32 */

#endif /* __ELF_TYPE_H */
